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WORTH 20 POINTS HELP PLEASE

physical or chemical property:
iron and oxygen from rust
iron is denser brightly when ignited
oild and water do not mix
mercury melts at -39C

User Aja
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7.9k points

1 Answer

3 votes

Answer:

The answers to your questions are below

Step-by-step explanation:

Physical change is when matter changes its form but is still the same substance.

Chemical change is when matter changes its composition.

iron and oxygen from rust It's a chemical change because iron and oxygen form a new compound different from the reactants.

iron is denser brightly when ignited . This is a chemical property because iron reacts with oxygen.

oil and water do not mix it's a physical change, oil and water are in touch but they do not react.

mercury melts at -39°C it's a physical property because mercury changes from solid to liquid but it still is mercury.

User TJ Asher
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8.7k points
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